扩展的DP材料模式

11.3.1 Extended Drucker-Prager models Products: ABAQUS/Standard ABAQUS/Explicit The extended Drucker-Prager models are defined by using the *DRUCKER PRAGER option together with the *DRUCKER PRAGER HARDENING option and, optionally, the *RATE DEPENDENT, the *DRUCKER PRAGER CREEP, and the *TRIAXIAL TEST DATA options. 扩展的Drucker－Prager 材料模式是由*DRUCKER PRAGER 选项连同*DRUCKER PRAGER HARDENING 及*RATE DEPENDENT, *DRUCKER PRAGER CREEP, *TRIAXIAL TEST DATA 定义的。 References 参考资料  *DRUCKER PRAGER  *DRUCKER PRAGER HARDENING  *RATE DEPENDENT  *DRUCKER PRAGER CREEP  *TRIAXIAL TEST DATA  “Material library: overview,” Section 9.1.1  “Inelastic behavior,” Section 11.1.1  “Rate-dependent yield,” Section 11.2.3  “Rate-dependent plasticity: creep and swelling, ” Section 11.2.4 Overview 概要 The extended Drucker-Prager models: 扩展的D-P 模式：  are used to model frictional materials, which are typically granular-like soils and rock, and exhibit pressure-dependent yield (the material becomes stronger as the pressure increases);  可以用来模拟摩擦材料，典型的是粒状岩土材料及表现压力相关屈服材料（由于压力的增加材料强度增高）；  are used to model materials in which the compressive yield strength is greater than the tensile yield strength, such as those commonly found in composite and polymeric materials;  可以用来模拟抗压屈服强度大于抗拉屈服强度的材料，如通常所说的复合材料；  allow a material to harden and/or soften isotropically;  容许材料等向硬化和/或软化  generally allow for volume change with inelastic behavior: the flow rule, defining the inelastic straining, allows simultaneous inelastic dilation (volume increase) and inelastic shearing;  通常容许材料的无弹性行为的体积变化：流动法则，定义的无弹性应变，容许同时发生无弹性膨胀...