Results 31 to 40 of about 16,417 (265)

Human dilated ascending aorta: Mechanical characterization via uniaxial tensile tests

Journal of the Mechanical Behavior of Biomedical Materials, 2016
Aneurysms of the ascending aorta (AsAA), i.e., a progressive and localized dilatation of the first part of the aorta, represent a severe life-threatening condition, often occurring with no symptom. AsAA formation is associated with a degeneration of the aortic wall tissue, which leads to changes in the tissue mechanical properties, and in particular to
A. Ferrara, MORGANTI, SIMONE, P. Totaro, A. Mazzola, AURICCHIO, FERDINANDO   +4 more
openaire   +3 more sources

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

Exploring Mechanical Properties Using the Hydraulic Bulge Test and Uniaxial Tensile Test with Micro-Samples for Metals

Metals
The hydraulic bulge test with micro-samples is expected to be useful in the damage assessment of long-service-period metals to understand the degeneration of their mechanical properties.
Jian Bao, Haoran Ding, Zhiquan Zuo, Jian Peng   +3 more
doaj   +1 more source

Numerical Simulation of Static Stress-Strain Relationship and Failure Mode for Freeze-Thaw Concrete

Advances in Civil Engineering, 2020
To analyze the causes of failure of cubic concrete test specimens under quasistatic axial compression, microtests and finite element numerical simulation of C40 cubic concrete test specimens were conducted without the freeze-thaw cycle and with 50 freeze-
Xiaolin Yang, Genhui Wang, Hongzhao Li, Jiang Fan   +3 more
doaj   +1 more source

Study on the Internal Mechanics and Energy Characteristics of Soil under Different Failure Modes

Applied Sciences, 2023
Under uniaxial compression, the soil mass may be subjected to transverse tensile splitting or swelling failure. This failure is caused by the tensile stress in the soil; that is, part of the vertical stress is converted into lateral stress.
Lian-Sheng Tang, Yu-Xi Wang
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Study on Damage Constitutive Model of Reactive Powder Concrete in Uniaxial Tension

Buildings
In this paper, the damage constitutive model of reactive powder concrete (RPC) in uniaxial tension is investigated. The relationship between the uniaxial tensile strength of RPC and the steel fiber admixture was analyzed by preparing RPC specimens with ...
Hongji Zhang, Hang Lu, Ziheng Wang, Siming Gao, Bo Wen, Yanzhong Ju   +5 more
doaj   +1 more source

New Challenges on Developing Experimental Methods for Innovative Metal Forming Techniques

Physical Sciences Forum, 2022
For industrial applications of innovative metal forming techniques, advanced experimental methods have been developed to characterize the mechanical properties of materials under the corresponding forming conditions.
Ruiqiang Zhang, Jianguo Lin
doaj   +1 more source

Whole-field analysis of uniaxial tensile tests by Moiré interferometry

Optics and Lasers in Engineering, 2005
Abstract Moire interferometry—a high sensitivity whole-field optical technique—was used to follow the evolution of the deformation process of an aluminium sample subjected to a uniaxial tensile test. This technique allowed us to measure the two in-plane displacement components undergone by the sample, to evaluate the strain, stress and rotation ...
Cordero, RR, Francois, M, Lira, I, Vial Edwards, C   +3 more
openaire   +4 more sources

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source