MATERIAL PROPERTY DISTRIBUTION DETERMINATION FOR FATIGUE LIFE CALCULATION USING DENDRITE ARM SPACING AND POROSITY-BASED MODELS

PURPOSE: Material property distribution determination for fatigue life calculation using models based on dendrite arm spacing and porosity is provided to determine distribution of a material property with all cast component based on a casting process simulation explaining a dendrite arm spacing valu...

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Bibliographic Details
Main Authors ZHOU XINYU, LI BING, CREPEAU PAUL N, WANG QIGUI, ARUNKUMAR R
Format Patent
LanguageEnglish
Korean
Published 18.09.2012
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PURPOSE: Material property distribution determination for fatigue life calculation using models based on dendrite arm spacing and porosity is provided to determine distribution of a material property with all cast component based on a casting process simulation explaining a dendrite arm spacing value and a porosity value, thereby predicting the fatigue life and a tensile property of a cast aluminum alloy. CONSTITUTION: Node coordinates corresponding to a cast mesh simulation and a final element mesh simulation are inputted. Material property information is supplied from a material property database. At least one information of a coagulation simulation component and a boundary condition is supplied. At least one value of coagulation time and coagulation speed is selected based on at least the one information of the coagulation simulation component and the boundary condition, and the material property information received from each node of the cast mesh simulation. [Reference numerals] (110) Geometric model; (115) Casting geometric model; (120A) Final element mesh node coordinate; (120B) Casting mesh node coordinate; (125) Additional coagulation model component and boundary condition; (130) Coagulation simulation; (140) Mesh combination; (150) Material database; (160) Simulation result mapping and node material property calculation(MATGEN); (170) Fatigue analysis; (180) Structure analysis; (185) Element load and thermal boundary condition; (190) Final element node coordinate + node stress/stress distortion rate; (200A) Element node coordinate + node DAS/air porosity(accurate) + node matter property; (200B) Final element node coordinate + node stress/stress distortion rate + node safety coefficient
Bibliography:Application Number: KR20120022860