Comparison between Mechanical APDL beam / shell and WB Solid Analyses

12 Pages·2010·0.71 MB·English

by  Bernard Patury

Comparison between
Mechanical APDL beam / shell and
WB Solid Analyses
TRESCA ENGENHARIA, CONSULTORIA E ANÁLISE DE TENSÕES
http://www.tresca.com.br
André Ricardo Beim
Renato Bezerra Leão
COMPANY OVERVIEW
 TRESCA ENGENHARIA is a company established in 1994. With different specialties,
provides services for several national and international companies. The main activity area
includes:
 finite element stress analysis,
thermal analysis,
vibration analysis,
fracture mechanics analysis,
consulting in design standards: ASME, API, AISC and BS,
consulting in pressure vessels, mechanical equipments and pipes,
design and calculation of floating roof of oil tanks.
 Founder André Beim works with finite element stress analysis since 1976 and is one of
the first ANSYS users in Brazil;
BEAM/SHELL x WB SOLID ANALYSES
This study shows the comparison between two different approaches –
shell and line modeling versus solid modeling (CAD)
The operating conditions were considered. In these conditions, the
following comparison parameters are defined: equivalent stress, buckling
factors and displacements
TRADITIONAL APPROACH
DWG
CAD 3D APPROACH
The whole equipment is represented by solid elements SOLID187
The FE geometry is identical to the CAD model
CAD 3D APPROACH
DIFFERENCES BETWEEN APPROACHES
ADVANTAG ES
Red u cti o n o n th e ti me fo r resu l ts
Mo re d etai l s  g reater o p ti mi zati o n p o ssi b i l i ti es
RESULTS - STRESS
The results (qualitative and quantitative) of the stress analysis were
satisfactory. The global equipment behavior is similar.
RESULTS - STRESS
RESULTS - DEFORMATION