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  • Users: ndh
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  1. ndh

    Modeling of single-lap bolt-joint (urgent)

    Hi all, I am a new user of ABAQUS. Now, I am using version 6.8 (CAE) to model a single-lap bolt-joint (see the attached files: 1-bolt.cae, job-1.inp, job-1.dat and job-1.msg). When I run the model, I get the following message "the system matrix has 2 negative eigenvalues". It seems that the...

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