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[求助]
ABAQUS的VUMAT子程序问题
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请问下，使用的VUMAT子程序一直在报错，下面是报错和警告 Errors： Analysis is terminated from user subroutine. Abaqus/Explicit Analysis exited with an error - Please see the status file for possible error messages if the file exists. Warning： The parameter hourglass on the *section controls option is relevant for solid, membrane, and shell elements with reduced integration wherever applicable. This warning can be ignored if the feature is applied to these element types only. For two-dimensional models, if a non-unity thickness is specified for two-dimensional solid elements and these elements are involved in an interaction such as contact, the same thickness should be specified for the out-of-plane thickness of the corresponding surface under *surface interaction. 473 elements are distorted. Either the isoparametric angles are out of the suggested limits or the triangular or tetrahedral quality measure is bad. The elements have been identified in element set WarnElemDistorted. Output request eequt is not available for the material for element type cpe3t Output request evf is not available for element type cpe3t Output request mvf is not available for the material for element type cpe3t Output request peeqvavg is not available for element type cpe3t Output request pevavg is not available for element type cpe3t Output request sequt is not available for the material for element type cpe3t Output request svavg is not available for element type cpe3t Output request te is not available for the material for element type cpe3t Output request teeq is not available for the material for element type cpe3t Output request tevol is not available for the material for element type cpe3t Output request eequt is not available for the material for element type cpe4rt Output request evf is not available for element type cpe4rt Output request mvf is not available for the material for element type cpe4rt Output request peeqvavg is not available for element type cpe4rt Output request pevavg is not available for element type cpe4rt Output request sequt is not available for the material for element type cpe4rt Output request svavg is not available for element type cpe4rt Output request te is not available for the material for element type cpe4rt Output request teeq is not available for the material for element type cpe4rt Output request tevol is not available for the material for element type cpe4rt Output request rf3 is not valid since it requests output at a dof that is not active Output request rm1 is not valid since it requests output at a dof that is not active Output request rm2 is not valid since it requests output at a dof that is not active There are 26 warning messages in the data (.dat) file. Please check the data file for possible errors in the input file. A material defined in user subroutine VUMAT must be defined as purely elastic (using the initial elastic modulus) at the beginning of the analysis (stepTime=0). This is an informative message. It does not necessarily indicate that user subroutine VUMAT is incorrectly defined. A material defined in user subroutine VUMAT must be defined as purely elastic (using the initial elastic modulus) at the beginning of the analysis (stepTime=0). This is an informative message. It does not necessarily indicate that user subroutine VUMAT is incorrectly defined. Boundary conditions are defined at the nodes contained in node set WarnNodeBcIntersectKinCon. In addition the nodes are also part of a surface involved in kinematic contact. The kinematic contact constraint will be overridden by the boundary conditions in case of a conflict. Penalty contact may be used instead. |
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