The effects of residual stress on elastic-plastic fracture propagation and stability

Coules, Harry; Horne, Graeme; Venkata, Kiranmayi Abburi; Pirling, Thilo

doi:10.1016/j.matdes.2018.01.064

Cited by 40 publications

(14 citation statements)

References 21 publications

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“…Depending on the crack opening or crack closure, residual stress can promote or inhibit the initiation of fracture. Residual stress affects the fracture initiation behavior of the materials and their resistance to subsequent crack growth [16]. These parameters can be affected by the raw materials and their specific mix-design ratio.…”

Section: Experimental Programmentioning

confidence: 99%

Fracture Energy of Engineered Cementitious Composites

Mircea

Toader

2020

The 14th International Conference on Interdisciplinarity in Engineering—INTER-Eng 2020

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The aim of this paper is to present preliminary results regarding Engineered Cementitious Composites (ECC) and their behavior when experimentally assessing their fracture energy, by measuring the flexural tensile strength (limit of proportionality, residual). As a characteristic of a ductile material, fracture energy is an important parameter when assessing ECC post-cracking residual stresses. With 2% fibers addition in the mixtures, the crack width can be controlled and the material’s ability to bear a tensile strain-hardening capacity has been assessed. Ninety days flexural tensile strength tests were performed in order to obtain preliminary results on ECC prismatic specimens.

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Section: Experimental Programmentioning

confidence: 99%

Fracture Energy of Engineered Cementitious Composites

Mircea

Toader

2020

The 14th International Conference on Interdisciplinarity in Engineering—INTER-Eng 2020

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“…Here is an example of one academic paper (Coules et al, 2018) containing five sets of keywords: "Residual stress", "Fracture", "Neutron diffraction", "Digital image correlation" and "Finite element method". It can be seen that there exist high-level associations between these five sets of keywords from engineering perspective, shown in Figure 4-2 as a relational network.…”

Section: Linking Abstractmentioning

confidence: 99%

A Data-Driven Text Mining and Semantic Network Analysis for Design Information Retrieval

Shi

Chen

Han

et al. 2017

Journal of Mechanical Design

114

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With the advent of the big-data era, massive information stored in electronic and digital forms on the internet become valuable resources for knowledge discovery in engineering design. Traditional document retrieval method based on document indexing focuses on retrieving individual documents related to the query, but is incapable of discovering the various associations between individual knowledge concepts. Ontology-based technologies, which can extract the inherent relationships between concepts by using advanced text mining tools, can be applied to improve design information retrieval in the large-scale unstructured textual data environment. However, few of the public available ontology database stands on a design and engineering perspective to establish the relations between knowledge concepts. This paper develops a “WordNet” focusing on design and engineering associations by integrating the text mining approaches to construct an unsupervised learning ontology network. Subsequent probability and velocity network analysis are applied with different statistical behaviors to evaluate the correlation degree between concepts for design information retrieval. The validation results show that the probability and velocity analysis on our constructed ontology network can help recognize the high related complex design and engineering associations between elements. Finally, an engineering design case study demonstrates the use of our constructed semantic network in real-world project for design relations retrieval.

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“…The proposed model is verified by the finite element method and is used to construct a deformation mechanism as well as a graphical characteristic. In [2], it is found that residual stresses in materials affect their resistance to initiation of fracture. In [3] the modification of the numerical-analytical model for the study of beam elastic-plastic characteristics is presented.…”

Section: Main Bodymentioning

confidence: 99%

Steel Statically Uncertain Transverse Frames Probabilistic Calculation

Chichulina¹,

Chichulin²,

2018

IJET

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The aim of the work is probabilistic calculation and evaluation of steel statically uncertain frames reliability parameters and recommendations development for reducing their material content by controlling the reserves of the load bearing capacity of the.A method for evaluating the reliability parameters of steel statically uncertain frames by all able-bodied statens is developed. Logical probabilistic methods of statically uncertain systems work are used. The probability estimation method of statically uncertain systems failure based on the boundary equilibrium method, taking into account the correlation of individual destruction schemes, is obtained. The method of calculating the significance and contribution of individual frame elements and their influence on the system failure probability as a whole is proposed. The practical method of designing steel statically unidentified frames with the use of steel statically uncertain constructions reliability coefficient γs is offered. The scientific novelty of the work is to develop a scheme for determining frames failure probability by estimating the working capacity. In particular, the fragile and plastic fracturing failures of the frame section are considered. The algorithms for calculating the steel frames failure probability are determined by the probabilistic method of graphical equilibrium. The steel frame separate elements significance indexes are determined. The numerical experiment on the developed programs on a PC is presented for estimation of steel frames failure probability of various sections. the of of steel statically uncertain constructions reliability coefficient γs is proposed for usage.The practical value is more complete consideration of the structures and the probabilistic nature of strength and load, the use of the reliability coefficient. The possibilities of obtaining more economical frames in the design of new ones as well as reconstruction of existing buildings and facilities are identified. Based on the proposed methodology, algorithms and developed programs on the PC for the probabilistic calculation of steel statically uncertain frames for various purposes are compiled.

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The effects of residual stress on elastic-plastic fracture propagation and stability

Cited by 40 publications

References 21 publications

Fracture Energy of Engineered Cementitious Composites

Fracture Energy of Engineered Cementitious Composites

A Data-Driven Text Mining and Semantic Network Analysis for Design Information Retrieval

Steel Statically Uncertain Transverse Frames Probabilistic Calculation

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