Results 161 to 170 of about 2,632 (215)
Advanced Science, EarlyView.A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu +5 more
wiley +1 more source
Advanced Science, EarlyView.A bioinspired strain‐adaptive ligament‐bone architecture achieves record‐high energy density of 26.1 J cm−3 and 90% efficiency at 600 MV m−1, coupled with a Young's modulus of 2.13 GPa. ABSTRACT Polymer dielectrics for capacitive energy storage face fundamental trade‐offs between breakdown strength, energy density, efficiency, and mechanical robustness.
Jian Wang +6 more
wiley +1 more source
Advanced Science, EarlyView.A trace amount of boron is introduced into NbTaTi1.5V RHEA, forming a finegrained BCC+TiO+TiB microstructure. The TiB phase generates numerous dislocations, strengthening the alloy. The alloy exhibits 3610 MPa compressive fracture strength and 1060 HV microhardness, while retaining 14.8% fracture strain.
Da Wu +9 more
wiley +1 more source
Compression-induced Ductile Flow of Brittle Materials and Brittle Fracturing of Ductile Materials
, 1989 openaire +2 more sources
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Brittle and Quasi-Brittle Materials
2009The optimization problems considered in this section consist in finding the shape and the thickness distribution of axisymmetric shells in the framework of membrane theory, loaded by fixed statical forces in such a way that the cost functional reaches a maximum, while satisfying some strength mechanics constraints.
N. V. Banichuk, Pekka Neittaanmäki
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Nonlinear Analysis of Brittle Materials
2008The problem of the evaluation of the nonlinear response of damaged structures is considered. In order to circumvent the numerical difficulties which can affect standard numerical strategies because of the high sensitivity of the stress response to small changes of displacements, a specific implementation of the standard path-following procedure is ...
MALENA M, BILOTTA, Antonio, LANZO A. D.
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The Fracture of Brittle Materials
2012Preface ix Acknowledgments xi 1. Introduction 1 2. Fracture Mechanics Background 6 3. Environmentally Enhanced Crack Growth 19 4. Fracture Mechanics Tests 32 5. Strength Testing 68 6. Quantitative Fractography 99 7. Microstructural Effects 131 8. Predicting Reliability 145 9.
Stephen W. Freiman, John J. Mecholsky
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1997
Abstract Brittle materials, such as ceramics, intermetallics, and graphites, are increasingly being used in the fabrication of lightweight components. This article focuses on the design methodologies and characterization of certain material properties.
Stephen F. Duffy, Lesley A. Janosik
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Abstract Brittle materials, such as ceramics, intermetallics, and graphites, are increasingly being used in the fabrication of lightweight components. This article focuses on the design methodologies and characterization of certain material properties.
Stephen F. Duffy, Lesley A. Janosik
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Indentation of Brittle Materials
1985The use of indentation testing as a method for investigating the deformation and fracture properties of intrinsically brittle materials, glasses, and ceramics is examined. It is argued that the traditional plasticity models of hardness phenomena can be deficient in some important respects, notably in the underlying assumptions of homogeneity and volume
DB Marshall, BR Lawn
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Materials Science and Engineering, 1974
Abstract Refractory ceramics are rapidly emerging as viable candidates for high temperature turbine structures. Their application to a vehicular turbine and the design and development of selected components will be discussed. More specifically, the general design philosophy and the methods used in the design of ceramic turbine stators and rotors will
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Abstract Refractory ceramics are rapidly emerging as viable candidates for high temperature turbine structures. Their application to a vehicular turbine and the design and development of selected components will be discussed. More specifically, the general design philosophy and the methods used in the design of ceramic turbine stators and rotors will
openaire +1 more source