*MAT_240 (COHESIVE_MIXED_MODE_ELASTOPLASTIC_RATE)

LS-DYNA入力インターフェースキーワードこのキーワードは、状態依存性、法線方向とせん断方向の損傷性、および法線方向とせん断方向の破壊性を持つ完全塑性の粘着性材料を定義します。

フォーマット

(1) (2) (3) (4) (5) (6) (7) (8)
*MAT_240または*MAT_COHESIVE_MIXED_MODE_ELASTOPLASTIC_RATE
mat_ID ρ i     En Gs Thick  
En_0 En_1 En_rate σ n_0 σ n_1 N_rate Form_n  
Es_0 Es_1 Es_rate σ s_0 σ s_1 S_rate Form_s  

定義

フィールド 内容 SI 単位の例
mat_ID 材料識別子

(整数)

 
ρ i 初期密度

(実数)

[ kg m 3 ]
En 法線方向のヤング率

(実数)

[ N m ]
Gs せん断面内のせん断弾性係数

(実数)

[ N m ]
Thick 基準粘着厚み

(実数)

[ m ]
En_0 法線方向の損傷と破壊のエネルギー
> 0
エネルギー値(速度依存性なし)
< 0
小さい方のエネルギー値

(実数)

[ J ]
En_1 法線方向の損傷エネルギーと破壊エネルギーのうち、大きい方の値(En_0 < 0の場合にのみ使用)。

(実数)

[ J ]
En_rate 法線方向の損傷と破壊の塑性ひずみ速度係数(En_0 < 0の場合にのみ使用)。

(実数)

 
σ n_0 法線方向の降伏応力
> 0
降伏値(速度依存性なし)
< 0
速度依存性に対する降伏値

(実数)

[ Pa ]
σ n_1 法線方向の降伏応力係数(< 0の場合にのみ使用)。

(実数)

[ Pa ]
N_rate 法線方向の降伏応力の塑性ひずみ速度係数(< 0の場合にのみ使用)。

(実数)

 
Form_n 法線方向の三線形状定式化
> 0
破壊エネルギーの比率
< 0
破壊変位の比率

(実数)

 
Es_0 せん断面内の損傷と破壊のエネルギー
> 0
エネルギー値(速度依存性なし)
< 0
小さい方のエネルギー値

(実数)

[ J ]
Es_1 せん断面内の損傷エネルギーと破壊エネルギーのうち、大きい方の値(Es_0 < 0の場合にのみ使用)。

(実数)

[ J ]
Es_rate せん断面内の損傷と破壊の塑性ひずみ速度係数(Es_0 < 0の場合にのみ使用)。

(実数)

 
σ s_0 せん断面内の降伏応力
> 0
降伏値(速度依存性なし)
< 0
速度依存性に対する降伏値

(実数)

[ Pa ]
σ s_1 せん断面内の降伏応力係数(< 0の場合にのみ使用)。

(実数)

[ Pa ]
S_rate せん断面内の降伏応力の塑性ひずみ速度係数(< 0の場合にのみ使用)。

(実数)

 
Form_s せん断面内の三線形状定式化
> 0
破壊エネルギーの比率
< 0
破壊変位の比率

(実数)

 

コメント

  1. このキーワードは、/MAT/LAW83/PROP/TYPE43 (CONNECT)、および/FAIL/SNCONNECTにマップされます。
  2. 速度依存性のある降伏応力は次のように定義できます:
    • σ n _ 1 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4WdmNaam OBaiaac+facaaIXaaaaa@3A4A@ > 0の場合: σ n = σ n _ 0 + σ n _ 1 * max 0 , ln ε ˙ N _ r a t e 2 MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4WdmNaam OBaiabg2da9maaemaabaGaeq4WdmNaamOBaiaac+facaaIWaaacaGL hWUaayjcSdGaey4kaSYaaqWaaeaacqaHdpWCcaWGUbGaai4xaiaaig daaiaawEa7caGLiWoacaGGQaGaciyBaiaacggacaGG4bWaaeWaaeaa caaIWaGaaiilaiGacYgacaGGUbWaaeWaaeaadaWcaaqaaiqbew7aLz aacaaabaGaamOtaiaac+facaWGYbGaamyyaiaadshacaWGLbaaaaGa ayjkaiaawMcaaaGaayjkaiaawMcaamaaCaaaleqabaGaaGOmaaaaaa a@5B7D@
    • σ n _ 1 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4WdmNaam OBaiaac+facaaIXaaaaa@3A4A@ < 0の場合: σ n = σ n _ 0 + σ n _ 1 * max 0 , ln ε ˙ N _ r a t e MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4WdmNaam OBaiabg2da9maaemaabaGaeq4WdmNaamOBaiaac+facaaIWaaacaGL hWUaayjcSdGaey4kaSYaaqWaaeaacqaHdpWCcaWGUbGaai4xaiaaig daaiaawEa7caGLiWoacaGGQaGaciyBaiaacggacaGG4bWaaeWaaeaa caaIWaGaaiilaiGacYgacaGGUbWaaeWaaeaadaWcaaqaaiqbew7aLz aacaaabaGaamOtaiaac+facaWGYbGaamyyaiaadshacaWGLbaaaaGa ayjkaiaawMcaaaGaayjkaiaawMcaaaaa@5A94@
    • σ s _ 1 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4WdmNaam OBaiaac+facaaIXaaaaa@3A4A@ > 0の場合: σ s = σ s _ 0 + σ s _ 1 * max 0 , ln ε ˙ S _ r a t e 2 MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4WdmNaam 4Caiabg2da9maaemaabaGaeq4WdmNaam4Caiaac+facaaIWaaacaGL hWUaayjcSdGaey4kaSYaaqWaaeaacqaHdpWCcaWGZbGaai4xaiaaig daaiaawEa7caGLiWoacaGGQaGaciyBaiaacggacaGG4bWaaeWaaeaa caaIWaGaaiilaiGacYgacaGGUbWaaeWaaeaadaWcaaqaaiqbew7aLz aacaaabaGaam4uaiaac+facaWGYbGaamyyaiaadshacaWGLbaaaaGa ayjkaiaawMcaaaGaayjkaiaawMcaamaaCaaaleqabaGaaGOmaaaaaa a@5B91@
    • σ s _ 1 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4WdmNaam OBaiaac+facaaIXaaaaa@3A4A@ < 0の場合: σ s = σ s _ 0 + σ s _ 1 * max 0 , ln ε ˙ S _ r a t e MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4WdmNaam 4Caiabg2da9maaemaabaGaeq4WdmNaam4Caiaac+facaaIWaaacaGL hWUaayjcSdGaey4kaSYaaqWaaeaacqaHdpWCcaWGZbGaai4xaiaaig daaiaawEa7caGLiWoacaGGQaGaciyBaiaacggacaGG4bWaaeWaaeaa caaIWaGaaiilaiGacYgacaGGUbWaaeWaaeaadaWcaaqaaiqbew7aLz aacaaabaGaam4uaiaac+facaWGYbGaamyyaiaadshacaWGLbaaaaGa ayjkaiaawMcaaaGaayjkaiaawMcaaaaa@5AA8@
  3. 損傷と破壊の依存性のエネルギーは次のように定義できます:
    • En= En_0 + En_1En_0 *exp En_rate ε ˙ MathType@MTEF@5@5@+= feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamyraiaad6 gacqGH9aqpdaabdaqaaiaadweacaWGUbGaai4xaiaaicdaaiaawEa7 caGLiWoacqGHRaWkdaqadaqaaiaadweacaWGUbGaai4xaiaaigdacq GHsislcaWGfbGaamOBaiaac+facaaIWaaacaGLOaGaayzkaaGaaiOk aiGacwgacaGG4bGaaiiCamaabmaabaWaaSaaaeaacqGHsislqaaaaa aaaaWdbiaadweacaWGUbGaai4xaiaadkhacaWGHbGaamiDaiaadwga a8aabaGafqyTduMbaiaaaaaacaGLOaGaayzkaaaaaa@578E@
    • Es= Es_0 + Es_1Es_0 *exp Es_rate ε ˙ MathType@MTEF@5@5@+= feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamyraiaado hacqGH9aqpdaabdaqaaiaadweacaWGZbGaai4xaiaaicdaaiaawEa7 caGLiWoacqGHRaWkdaqadaqaaiaadweacaWGZbGaai4xaiaaigdacq GHsislcaWGfbGaam4Caiaac+facaaIWaaacaGLOaGaayzkaaGaaiOk aiGacwgacaGG4bGaaiiCamaabmaabaWaaSaaaeaacqGHsislqaaaaa aaaaWdbiaadweacaWGZbGaai4xaiaadkhacaWGHbGaamiDaiaadwga a8aabaGafqyTduMbaiaaaaaacaGLOaGaayzkaaaaaa@57A7@
  4. 三線破壊モデルは次のように定義できます:


    図 1.
    • Form > 0の場合:
      • F o r m _ n = E p _ n E t _ n MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaeaaaaaaaaa8 qadaabdaqaaiaadAeacaWGVbGaamOCaiaad2gacaGGFbGaamOBaaGa ay5bSlaawIa7aiabg2da9maalaaabaGaamyraiaadchacaGGFbGaam OBaaqaaiaadweacaWG0bGaai4xaiaad6gaaaaaaa@46F7@ E t _ n MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcqaaaaaaaaaWdbe aacaWGfbGaamiDaiaac+facaWGUbaaaa@39AF@ : 全エネルギー、 E P _ n MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcqaaaaaaaaaWdbe aacaWGfbGaamiDaiaac+facaWGUbaaaa@39AF@ : 法線方向の完全塑性エネルギー)
      • F o r m _ s = E p _ s E t _ s MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaeaaaaaaaaa8 qadaabdaqaaiaadAeacaWGVbGaamOCaiaad2gacaGGFbGaam4CaaGa ay5bSlaawIa7aiabg2da9maalaaabaGaamyraiaadchacaGGFbGaam 4CaaqaaiaadweacaWG0bGaai4xaiaadohaaaaaaa@4706@ E t _ s MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcqaaaaaaaaaWdbe aacaWGfbGaamiDaiaac+facaWGUbaaaa@39AF@ : 全エネルギー、 E P _ s MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcqaaaaaaaaaWdbe aacaWGfbGaamiDaiaac+facaWGUbaaaa@39AF@ : せん断面内の完全塑性エネルギー)
    • Form < 0の場合:
      • F o r m _ n = δ n 2 δ n 1 δ n f δ n 1 MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaeaaaaaaaaa8 qadaabdaqaaiaadAeacaWGVbGaamOCaiaad2gacaGGFbGaamOBaaGa ay5bSlaawIa7aiabg2da9maalaaabaWaaeWaaeaacqaH0oazcaWGUb GaaGOmaiabgkHiTiabes7aKjaad6gacaaIXaaacaGLOaGaayzkaaaa baWaaeWaaeaacqaH0oazcaWGUbGaamOzaiabgkHiTiabes7aKjaad6 gacaaIXaaacaGLOaGaayzkaaaaaaaa@5232@ δ n i MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaeaaaaaaaaa8 qacqaH0oazcaWGUbGaamyAaaaa@3999@ : 法線方向の変位)
      • F o r m _ s = δ s 2 δ s 1 δ s f δ s 1 MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaeaaaaaaaaa8 qadaabdaqaaiaadAeacaWGVbGaamOCaiaad2gacaGGFbGaam4CaaGa ay5bSlaawIa7aiabg2da9maalaaabaWaaeWaaeaacqaH0oazcaWGZb GaaGOmaiabgkHiTiabes7aKjaadohacaaIXaaacaGLOaGaayzkaaaa baWaaeWaaeaacqaH0oazcaWGZbGaamOzaiabgkHiTiabes7aKjaado hacaaIXaaacaGLOaGaayzkaaaaaaaa@524B@ δ n i MathType@MTEF@5@5@+= feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaeaaaaaaaaa8 qacqaH0oazcaWGUbGaamyAaaaa@3999@ : せん断面内の変位)
  5. このキーワードの最後にオプション“_TITLE”を追加することができます。“_TITLE”が含まれている場合、キーワード入力行の後に余分に80文字の長さの行が追加され、エンティティタイトルを定義できるようになります。