... internal components against the fatigue crack propagation prevention criteria while considering the cyclic range of thermal stresses and stress intensity factor due to the thermal striping on one side of a component, and various boundary conditions on the other side. thermal striping natrium...

... conditions. The XFEM model’s sensitivity to mesh size and fracture criteria are discussed, emphasizing their importance in predicting crack paths. The research contributes to understanding extreme conditions, enhancing the safety and reliability of nuclear power generation. XFEM crack propagation...

...). hydrogen embrittlement austenitic stainless steels crack initiation crack propagation fatigue life ratchetting deformation Proceedings of the ASME 2024 Pressure Vessels & Piping Conference PVP2024 July 28-August 2, 2024, Bellevue, Washington PVP2024-123293 EFFECTS OF TEMPERATURE AND HYDROGEN...

... integrity assessment crack propagation Proceedings of the ASME 2023 Pressure Vessels & Piping Conference PVP2023 July 16-21, 2023, Atlanta, Georgia PVP2023-101268 THERMO-SHOCK EXPERIMENTS ON THICK-WALLED CYLINDRICAL MOCK-UPS Diego Fernando Mora Mendez1, Markus Niffenegger1, Gaojun Mao1, Beat...

... in the numerical solution for each loading block. Fatigue crack growth rate uncertainty within the bounds provided by BS 7910 is considered in this validation benchmarking. Keywords: damage tolerance, fractography, fatigue, crack propagation, modeling validation, 3D, finite element modeling. NOMENCLATURE 3D Three...

..., can be applied after crack initiated because the crack closure occurs. This means that the invalid cycles which do not contribute to the crack propagation due to the crack closure are counted by using Rain Flow Method. In other words, it is required to confirm whether Rain Flow Method is applicable...

...: Ageing components; ageing structures; AISI 4340 steel; brittle fracture; ceramics; chemical processing plant; coreliability; co-reliability-target; component co-reliability; crack growth rate; crack initiation; crack propagation; cracked pipe; failure probability; fatigue; fracture mechanics; gas...

... Abstract The integrity assessment of reactor pressure vessel (RPV) often considers only the crack initiation to evaluate the safety margin and excludes the crack propagation analysis. In this contribution, the combined eXtended Finite Element (XFEM) method with the Initiation-Growth-Arrest (IGA...

... was created to evaluate cracks with more accuracy and time efficiency. The verification of the program was carried out in two cases. By comparing the produced program with the test result of the three-point bending of the beam with rivet holes, it was shown that the program simulates crack propagation...

... to predict ductile crack propagation of typical fracture specimens made of a pressure vessel ASTM A285 steel. First, a detailed parametric study is conducted to reproduce the load versus displacement curve obtained from a fracture toughness test using deep crack bend samples. Then, after calibrating...

... component co-reliability crack growth rate crack initiation crack propagation cracked pipe failure probability fatigue modeling fracture mechanics gas pipeline inspection interval minimum time to failure multi-scale modeling NDE nondestructive evaluation oil pipeline piping POD powerplant...

.... The results show that for some geometries of the cylinder, the crack stops and in some other cases the crack propagates until the cylinder fails. The combined closed-weight function-initiation-growth-arrest (WFF-IGA) algorithm does not require expensive computational resources and gives fast reliable results...

... Abstract Assessing the crack propagation life of components is a critical aspect in evaluating the overall structural integrity of a mechanical structure that poses a risk of failure. Engineers often rely on industry standards and fatigue crack growth tools such as NASGRO [1] and AFGROW [2...

...) could significantly degrade fatigue performance of welded joints, with the damage parameter D only at around 0.5. The severity of this type of loading spectrum depends on the mean stress level and the plate thickness. An analytical model has been developed to predict fatigue crack propagation (FCP...

... growth exponent crack initiation crack propagation NDE nondestructive evaluation failure prevention fatigue modeling finite element method fracture mechanics inspection interval mathematical modeling piping precision structural integrity assessment pressure vessel PYTHON SHM statistical...

... it increases linearly with the number of cycles. The definition of each roughness parameter and the changes show that R max and R v are suitable for damage assessment. Low cycle fatigue Nondestructive testing Damage assessment Surface roughness parameter Crack initiation Crack propagation...

..., it is very time-consuming to create a three-dimensional (3D) finite element (FE) model to simulate crack propagation in a natural shape using existing public-domain software like ABAQUS or ANSYS. In this study, a local deformation-based mesh-mapping (LDMM) method is proposed to model cracks with a natural...

.... Keywords: Aging structures; ANLAP; artificial intelligence; crack propagation; database software; Dataplot; failure event database; fatigue; flaw detection; information extraction; in- service inspection; life extension; maintenance engineering; material property database; mathematical modeling; natural...

... calculation without uncertainty for deterministic modeling. Significance of the development of computer plug-ins to facilitate data mining of materials property databases and to assist risk-informed analysis is discussed. Keywords: Aging structures; ANLAP; artificial intelligence; crack propagation; database...

..., we introduce an automatic natural language abstracting and processing (ANLAP) tool to address Uncertainty-1. Three examples are presented and discussed. Aging structures ANLAP artificial intelligence computational linguistics conceptual dependency crack propagation database software...