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編輯 編輯 看到有這樣解釋的：對稱平面選項，決定當單元表面失效時沿一個表面是否仍然保持對稱性也有這樣解釋的： 但是還是不清楚選用這個的作用以及對結果會有什么影響

Contact field output is requested for a node-based surface (*SURFACE, TYPE=NODE) spanning multiple instances in an Abaqus/Explicit analysis.

Initial contact adjustments for resolving gaps and overclosures when a surface with double-sided facets is paired with any surface having double-sided facets may be incorrect.

abaqus 中當使用 硬接觸 功能中的 Allow separation after contact（不勾選）時，出現下列警告，請教下要怎么解決At least one non-blank surface must be specified for contact surface interactions referencing NO SEPARATION surface behavior

THIS MAY BE DUE TO NONEXISTENT SLAVE OR MASTER SURFACE, OR DUE TO ERRORS WHEN PROCESSING THE *CONTACT PAIR KEYWORD我明明定義了slave surface 和 master surface。

邊界條件設置為：1）歐拉體頂端外沿V1=0(不發生外流) 2）歐拉體截面設置V2,VR1,VR3=0(對稱面) 3）歐拉體外側一圓弧包圍范圍內設置了free inflow oulflow的設置，同時在load上對該位置施加pressure載荷 4）接觸設置為general contact，但是不包括四個surface-surface接觸，不包括的四個surface采用了surface

forces are available only for the master side with node to surface contact types of interface # 4 input of data is completed initial kinetic energy = 0.14923890E+08 The LS-DYNA time step size should not

現在想設置材料在壓輥的滾軋作用和外界面熱源（激光）加熱作用下粘在一起，請問如何設置？cohesive性質用general contact和surface to surface（explicit）都報錯，surface base cohesive contact只能用于bonded contact？

The contact pair referencing surfaces assembly_m_surf-1 and assembly_s_surf-1 has at least one instance of a node belonging to both surfaces.

for the out-of-plane thickness of the corresponding surface under *surface interaction.