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Fracture toughness of locust cuticle [PDF]

Journal of Experimental Biology, 2012
SUMMARYInsect cuticle is one of the most common biological materials, yet very little is known about its mechanical properties. Many parts of the insect exoskeleton, such as the jumping legs of locusts, have to withstand high and repeated loading without failure.
Jan-Henning, Dirks, David, Taylor
openaire   +2 more sources

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

Pultruded GFRP Translaminar Fracture Toughness Evaluation Using a Hybrid Approach of Size-Effect and Machine Learning

Applied Sciences
The translaminar fracture toughness of pultruded Glass Fiber Reinforced Polymers (GFRP) is influenced by several factors, including the type of matrix, fiber, the fiber volume ratio, the proportion of plies at each angle and the size of the test ...
Zenghui Zhao, Shihao Lu, Zhihua Xiong, Xiaoyu Liu   +3 more
doaj   +1 more source

Size Effect on Fracture Toughness of A508-3 Steel Predicted by Using Beremin Model

Yuanzineng kexue jishu, 2022
Fracture toughness is an important index to characterize the brittle state of reactor pressure vessel (RPV) steel. During the irradiation embrittlement study of RPV steel, small size compact tension (CT) specimens are generally used, because of the ...
ZHOU Henghui;ZHONG Weihua;NING Guangsheng;LIN Hu;YANG Wen
doaj  

Experimental Investigation on the Tensile and Fracture Properties of Burst-Prone Coal under Quasistatic Condition

Shock and Vibration, 2021
To study the tensile and fracture properties of the specimen under the quasistatic loading, the Brazilian disc splitting method and the notched semicircular bend (NSCB) method were used to test the tensile properties of coal specimens, and the fracture ...
Shuang Gong, Zhen Wang, Lei Zhou, Wen Wang   +3 more
doaj   +1 more source

Effect of Cu and CuP Additions on the Microstructure and Nanoindentation‐Based Fracture Behavior of CoNiAlSi Ferromagnetic Shape Memory Alloys

Advanced Engineering Materials, EarlyView.
Cu and combined Cu–P microalloying refine the microstructure and enhance the nanoindentation‐derived fracture resistance of CoNiAlSi ferromagnetic shape memory alloys without suppressing the martensitic transformation. Comparative SEM, DSC, and nanoindentation results reveal that the CuP‐containing alloy provides the most balanced response, achieving ...
Mehmet Demir
wiley   +1 more source

Mezzo-scopic Analysis of Fracture Toughness in Steels

Materials Research, 2002
The cleavage fracture toughness of steels was mezzo-scopically analyzed on the basis of the statistical local fracture criterion approach. The statistical stress criterion at the crack tip region suggests that the cleavage fracture toughness in steels ...
Miyata Takashi, Tagawa Tetsuya
doaj  

Investigation into the individual effects of temperature and sulphate ions on the fracture toughness of waste-based cemented paste backfill containing superplasticizer

Frontiers in Materials
Waste-based cemented paste backfill (WCPB) sustains long-term high dynamic loads in goafs, making modes I and II fracture toughness (KIC and KIIC) essential indicators for stability assessment.
Gang Duan, Gang Duan, Qing Zhang, Yang He, Qilong Yu, Qilong Yu, Yunheng Wei, Yunheng Wei, Kun Fang, Kun Fang   +9 more
doaj   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source