Ivar KJELBERG
COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted:
9 years ago
05.11.2015, 08:52 GMT-5
Hi
First of all which safety factors ? Against yield, buckling, fatigue ... ?
FEM is giving you (mostly linear) approximation to loads and dynamics on/of a structure, as well as stress levels (with often numerical "hot-spot artifacts"). You must understand these, know your materials well and then estimate your safety factors.
But for me the "safety factor analysis" are engineering analysis on FEM results, with as much engineering and material knowledge and practical experience as pure modeling.
--
Good luck
Ivar
Hi
First of all which safety factors ? Against yield, buckling, fatigue ... ?
FEM is giving you (mostly linear) approximation to loads and dynamics on/of a structure, as well as stress levels (with often numerical "hot-spot artifacts"). You must understand these, know your materials well and then estimate your safety factors.
But for me the "safety factor analysis" are engineering analysis on FEM results, with as much engineering and material knowledge and practical experience as pure modeling.
--
Good luck
Ivar
Please login with a confirmed email address before reporting spam
Posted:
8 years ago
16.04.2017, 05:06 GMT-4
Hi,
is the relation between safety factor and von mises stress S.F=yield strength/von mises stress ?
thank you
Hi,
is the relation between safety factor and von mises stress S.F=yield strength/von mises stress ?
thank you