Results 91 to 100 of about 374,216 (356)

Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels [PDF]

, 2014
Sequential sheet metal forming processes can result in the accumulation of work hardening and damage effects in the workpiece material. The mechanical strength of the final component depends on the “evolution” of these two characteristics in the ...
ACHOURI, Mohamed, DAL SANTO, Philippe, GERMAIN, Guénaël, SAIDANE, Delphine   +3 more
core   +3 more sources

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

On the puzzling feature of the silence of precursory electromagnetic emissions [PDF]

, 2013
It has been suggested that fracture-induced MHz-kHz electromagnetic (EM) emissions, which emerge from a few days up to a few hours before the main seismic shock occurrence permit a real-time monitoring of the damage process during the last stages of ...
Chelidze, T., Eftaxias, K., Potirakis, S. M.   +2 more
core   +2 more sources

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

Damage characteristic of split-re-closed shale under impact shearing

International Journal of Coal Science & Technology
This study proposes methane in-situ explosive fracturing (MIEF) for reactivating closed fractures in aging shale gas reservoirs. Employing a split Hopkinson pressure bar (SHPB) system, this study investigates the impact-shearing damage characteristics of
Wei Tang, Cheng Zhai, Ting Liu, Jizhao Xu, Yong Sun, Yangfeng Zheng, Yuzhou Cong, Yu Wang, Chengjian Pi   +8 more
doaj   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

Damage identification and fracture behavior of 2.5D SiCf/SiC composites under coupled stress states

Materials & Design
Continuous fiber-reinforced silicon carbide composites have received significant attention due to their high-temperature mechanical stability. However, their widespread implementation has been hindered by intricate fracture mechanisms and limited ...
Jie Cui, Hongyun Luo, Runze Wang, Jiaping Zhang, Jing Chen, Ziyu Ba, Zhaoliang Guo, Chaoli Ma   +7 more
doaj   +1 more source

Fracture and Damage Evolution of Multiple-Fractured Rock-like Material Subjected to Compression. [PDF]

Materials (Basel), 2022
Liu T, Cui M, Li Q, Yang S, Yu Z, Sheng Y, Cao P, Zhou K.   +7 more
europepmc   +1 more source

Continuum Damage and Scaling of Fracture [PDF]

, 2001
This paper presents a simple application of continuum damage modelling to failure analysis. An isotropic damage model is described and its non local enhancement discussed. The calibration of the model parameters is addressed with the help of structural size effect data.
Pijaudier-Cabot, Gilles, Le Bellégo, Caroline, Gérard, Bruno   +2 more
openaire   +3 more sources

An anisotropic damage–permeability model for hydraulic fracturing in hard rock [PDF]

, 2023
Jianxing Liao, Hong Wang, Faisal Mehmood, Cheng Cao, Zhengmeng Hou   +4 more
openalex   +1 more source