Stochastic Finite Element Failure Analysis of Laminated Plates Under Uniaxial Compressive Loading

2006 ◽  
Author(s):  
Amit Onkar ◽  
Chandra Upadhyay ◽  
Dayanand Yadav
Keyword(s):  
Finite Element ◽  
Failure Analysis ◽  
Compressive Loading ◽  
Laminated Plates ◽  
Stochastic Finite Element ◽  
Element Failure

scholarly journals Finite Element Failure Analysis of GFRP Laminates in Plate-Cone Reticulated Shell

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Xing Wang ◽  
Yu Jiang ◽  
Yonghui Huang ◽  
Yue Huang ◽  
Fan Wang
Keyword(s):  
Failure Analysis ◽  
Composite Laminates ◽  
Strength Criterion ◽  
Laminated Plates ◽  
Engineering Practice ◽  
Analysis Model ◽  
Ansys Software ◽  
Strength Failure ◽  
New Type ◽  
Element Failure

Plate-cone reticulated shell is a new type of spatial structures with good mechanical behavior, technical economy, and architectural appearance. In this paper, using ANSYS software, the strength failure analysis model of composite laminates is established in cooperation with the Strength Criterion of Hoffman. The effects of layer number, laying direction, and thickness of laminates on the ultimate strength of laminates are studied by detailed parametric analysis, which provides a theoretical basis for the design of composite plate-cone reticulated shell and GFRP laminated plates. Some important conclusions are obtained and can be applied to engineering practice.

Design and Reliability in Electronic Packaging Including Power Temperature Cycling and Vibration Effects

2003 ◽  
Author(s):  
Mark D. Nickerson ◽  
Chandrakant S. Desai
Keyword(s):  
Finite Element ◽  
Failure Analysis ◽  
Thermal Cycling ◽  
Temperature Cycling ◽  
Damage Models ◽  
Disturbed State Concept ◽  
Solder Balls ◽  
Element Failure ◽  
Viscoplastic Models ◽  
Cycles To Failure

Thermomechanical, power temperature cycling (PTC) and vibration analyses were performed on a 313 staggered pin PBGA package using plastic and viscoplastic disturbed-state damage models. An accelerated finite element failure analysis was performed using a newly developed procedure. Validations were performed using published PBGA test data. The disturbed state concept was used to model the disturbance (damage) accumulated in PBGA solder joints subjected to thermal cycling (PTC and TCT), vibration, and vibration coupled with three distinct temperatures. 2D FEA plastic and viscoplastic models were created based on a diagonal “slice” of the PBGA. This allowed the most critical solder balls (under the die and furthest DNP) to be analyzed in the same model. The thermal cycling results indicate that the solder balls under the die are the most likely to fail. The vibration results indicate the solder balls furthest from the package center are most likely to fail. The vibration results, coupled with distinct isothermal temperatures, indicate that as temperature increases, the cycles to failure decreases.

Finite element failure analysis of schifflerized angles

1991 ◽  
Vol 41 (5) ◽  
pp. 1087-1093 ◽  
Author(s):  
S.M.R. Adluri ◽  
M.K.S. Madugula ◽  
G.R. Monforton
Keyword(s):  
Finite Element ◽  
Failure Analysis ◽  
Element Failure

Finite element failure analysis of reinforced concrete T-girder bridges

2002 ◽  
Vol 24 (2) ◽  
pp. 151-162 ◽  
Author(s):  
Ha-Won Song ◽  
Dong-Woo You ◽  
Keun-Joo Byun ◽  
Koichi Maekawa
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Failure Analysis ◽  
Girder Bridges ◽  
Element Failure

Failure Analysis of the Stochastic Structural System

2006 ◽  
Vol 324-325 ◽  
pp. 223-226 ◽  
Author(s):  
Xin Chi Yan ◽  
Yuan Hua
Keyword(s):  
Finite Element ◽  
Failure Analysis ◽  
Reliability Analysis ◽  
Opposite Sign ◽  
Failure Process ◽  
Safety Margin ◽  
Probability Of Failure ◽  
Structural System ◽  
Stochastic Finite Element ◽  
Space Truss

Because there were many random factors, the failure analysis and reliability analysis of stochastic structural system was very difficult. In this paper, failure procedure and reliability analysis flow chart of stochastic structural system based on stochastic finite element were present. Establishment of the safety margin, reduced member stiffness matrix and opposite sign of the equivalent nodal force was analyzed in the failure process. Stochastic finite element method was adopt to solve the structures’ stochastic, and the reliability of structural system is evaluated by PNET method. According to probabilities of the failure paths redound to probability of failure of the structural system, the most significant failure paths was determined on the basis of the branch-and-bound method. Then, a classical 48-bar space truss problem is made as an example to illustrate the predominance of this algorithm, the calculation shows that the analysis of the failure process is justified; this methodology is efficient and useful for reliability analysis of large stochastic structural system.

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