... centrifugal and thermally induced stresses cause plastic deformation in the cylinder. When the cylinder is unloaded by bringing it to rest and cooling down to room temperature, compressive hoop residual stresses are introduced in the vicinity of the inner wall. A finite element method model of the proposed...

...M. Perl; S. M. Kamal; Solomon Mulera The evaluation of equivalent temperature fields for cylindrical and spherical pressure vessels to imitate autofrettage-induced residual stresses has been successfully implemented in studying crack growth in autofrettaged vessels by the finite element method...

... in the model. Three cases are presented for validation from theoretical and finite element methods. The discussion on variables was carried out from the views of friction coefficient and helically wound angle. Compared with the steel tube umbilical model, the nonmetallic armored umbilical cable shows higher...

... 07 11 2021 20 12 2021 thaw settlement buried pipeline finite element method axial strain ovality A large quantity of oil and natural gas resources in the world is stored in cold regions. Pipeline transportation is an essential way to develop oil and gas resources in cold...

.... , and Zheng , J. Y. , 2014 , “ Failure Analysis of Carbon Fiber/Epoxy Composite Cylindrical Laminates Using Explicit Finite Element Method ,” Compos. Part B , 56 , pp. 54 – 61 . 10.1016/j.compositesb.2013.08.017 [14] Zhu , X.-K. , and Leis , B. N. , 2004 , “ Strength Criteria...

...Zhufeng Liu; Yonghui Xie; Hao Dang In this paper, the finite element method (FEM) is conducted for thermal and mechanical analysis of a half 2D axisymmetric welded rotor model. The temperature results after welding are obtained and supported by the experiment results. Furthermore, the thermal...

... specimen geometries under biaxial loading with finite element method. The sources of discrepancy between the theory and the test data were identified. It was found that the ideal biaxial loading would not be achieved for typical fracture specimens with finite geometry. Comparison to available test data...

.... It can help the field engineers acquire the engineering data and conduce to relieve the need for performing the costly experiments practices or the time-consuming simulation and modeling using the finite element method. Many attempts on developing mathematical models of calculating the expansion...

...-strain-based method is applied to measure the welding residual stresses. The general theory of the inherent-strain-based measurement method [ 4–7 ] is described for an arbitrary three-dimensional stress state. The method is based on the inherent strain and the finite element method (FEM). It uses...

.... buckling steel liner pressure tunnel finite element method hydroelectric power plant Buckling failure occurs when most of the strain energy, stored as membrane energy, is transformed into bending energy, involving large deformations and deflections, which may result in catastrophic and brittle...

... with defects are assessed as well. To investigate the validity of IRIS in detecting the storage well, an interval casing with man-made defects is tested. FEM (finite element method), combined with the method in JB4732 (Chinese industry standard) is used to analyze the storage well with inner corrosion pits...

... length is computed by adopting the philosophy of CEGB-R6 procedure, for which J integral is computed by finite element method. For determining the detectable through-wall crack length, the crack opening area is also determined by finite element method. Finally, it is demonstrated that it is possible...

.... 02 08 2010 13 05 2011 20 10 2011 20 10 2011 elastoplasticity fatigue finite element analysis hardening plasticity plates (structures) pressure vessels steel fatigue notched plate variable amplitude loading finite element method elastoplastic analysis...

... to the gun barrel for given ammunition parameters. Subsequently the finite element method was employed to model gun barrel temperature history (temperature variation over time). Simulations were performed for a burst of nine shots and the results were found to match satisfactorily to the corresponding...

...Dan Vlaicu A cyclically loaded structure made of elastic-plastic material is considered as an elastic shakedown if plastic straining occurs in the first few cycles and the sequent response is wholly elastic. In this paper, the finite element method is used to develop upper and lower bound limits...

...Dan Vlaicu This paper presents the nonlinear shakedown analysis using finite element method for piping bends taking into account the maximum ovality tolerance. The resulting strain state of the stabilized cycle for the pipe bend including the maximum ovality tolerance is compared with the strain...

...) porous materials sheet materials finite element method failure modes perforated structure Porous plates with many perforations arranged in either equivalent triangular or square pattern are often used in the design of heat exchanger and steam generators. Elastic analysis is usually...

... element analysis life testing pipes reliability structural engineering Taguchi methods wear structural integrity steam generator tube finite element method condition monitoring assessment plastic instability fitness-for-service There is a need for fitness-for-service guidelines...

...Y. W. Kwon; J. C. Jo Three-dimensional fluid-structure interaction was modeled using the coupled lattice Boltzmann and finite element methods. The latter technique was applied to model a structural behavior while the former was used to model a fluid field. For computationally efficient modeling...

... calculations of the EAC crack growth rate, incorporating the SCC deformation /oxidation model and the elastic-plastic finite element method (EPFEM), are carried out. This approach can be used for the quantitative prediction of EAC crack growth rate in both the low and high strain zones of key structures...