<![CDATA[Cervenka Consulting Forums — About some warnings]]> https://forums.cervenka.cz/viewtopic.php?id=1636 Mon, 10 Jun 2013 05:33:04 +0000 PunBB <![CDATA[Re: About some warnings]]> https://forums.cervenka.cz/viewtopic.php?pid=2912#p2912 Hello, please see the ATENA Troubleshooting Manual, section 2.2.6 Floating point problems - Division by zero, Loss of >7 digits on the matrix diagonal, Floating point exception: Multiple
floating points traps, Zero or negative jacobian, InvertA: zero determinant, CCMaterials Extended AExc: CC5ParamYield F: project_stress_on_f_division by zero, and similar

]]> Mon, 10 Jun 2013 05:33:04 +0000 https://forums.cervenka.cz/viewtopic.php?pid=2912#p2912 <![CDATA[About some warnings]]> https://forums.cervenka.cz/viewtopic.php?pid=2910#p2910 Hi there,
I am working with ATENA 3D v4 to simulate the punching shear failure of two-way slabs,during the anlysis,I always got the information"(*)    Warning: Sign of diagonal changed when reducing equation: 41830, (node: 1023, dof_id: 1); value : 639.054
(*)    Warning: Loss of at least 7 digits in reducing diagonal of equation: 41836, (node: 2056, dof_id: 1); value: 5692.69
(*)    Warning: Loss of at least 7 digits in reducing diagonal of equation: 41837, (node: 2056, dof_id: 2); value: 4337.43;But the calculation is continue.I don't know why.So,I think I need your help.

Deng qing

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