A new insight into impact of thermal cycling on the un-notched and circular hole polymeric composite rings via naval ordnance laboratory-ring test

Ghasemi, Ahmad Reza; Tabatabaeian, Ali; Moradi, Mehdi

doi:10.1177/0021998320912836

Cited by 6 publications

(5 citation statements)

References 27 publications

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“…During the experiment, stroke displacements and force values were monitored using the Trapezium software. Tensile test in order to determine the apparent hoop tensile strength [31].…”

Section: Methodsmentioning

confidence: 99%

Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens

Travica

Mitrović

Petrović

et al. 2022

Metals

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Data on the strain and stress status of the pipe in the circumferential direction are required for various pipe manufacturing procedures (e.g., in the oil business, the process of manufacturing seamless pipes with a conical shaft). The aim of this study is to develop a procedure to determine the strain and stress behavior of Pipe Ring Tensile Specimens (PRTSs) in the hoop direction, as there are a lack of official standardized methods for testing PRTS. This paper discusses the application of the Digital Image Correlation method for testing plastic PRTSs. PRTSs are tested using a specially designed steel tool with two D blocks. A 3D-printed PRTS is placed over two D-shaped mandrels, which are fixed on a tensile tool and tensile testing machine. The strain evolution in the gage length of the specimens is captured using the three-dimensional Digital Image Correlation (3D DIC) method. To check the geometry of the cross-section of the PRTS after fracture, all the specimens are 3D scanned. For the study, six groups of PRTS are analyzed, consisting of three filling percentages (60, 90, and 100%) and two geometry types (Single and Double PRTS). The results show that the type and percentage of filling, as well as the method of printing, affect the material behavior. However, the approach with the DIC system, 3D printer, and scanner shows that they are effective instruments for mapping complete strain fields in PRTS, and thus are effective in characterizing the mechanical properties of pipes.

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“…During the experiment, stroke displacements and force values were monitored using the Trapezium software. Tensile test in order to determine the apparent hoop tensile strength [31].…”

Section: Methodsmentioning

confidence: 99%

Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens

Travica

Mitrović

Petrović

et al. 2022

Metals

View full text Add to dashboard Cite

show abstract

“…Curing Process: As mentioned earlier, a primary cause for the creation of residual stresses is an abrupt or cyclic change in the temperature field, meaning that the residual stress distribution is strongly dominated by plasticity due to thermal misfits which may occur in curing, [149,150] cooling, [151,152] thermal cycling, [153,154] and heat treatment [155] processes. In contrast, a well-established procedure for removing residual stresses induced on the surface of structures after the surface modification processes, without microstructural change, is to perform low-temperature heat treatment.…”

Section: Thermalmentioning

confidence: 99%

Residual Stress in Engineering Materials: A Review

et al. 2021

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The accurate determination of residual stresses has a crucial role in understanding the complex interactions between microstructure, mechanical state, mode(s) of failure, and structural integrity. Moreover, the residual stress management concept contributes to industrial applications, aiming to improve the product's service performance and life cycle. In this regard, the industry requests rapid, efficient, and modern methods to identify and control the residual stress state. This review article contains three main sections. The first section covers different residual stress determination methods and reports the advancements over the recent decade. The second section includes the role of residual stresses in the performance of a broad range of materials including metallic alloys, polymers, ceramics, composites, and biomaterials. This is presented by classifying different science areas dealing with residual stresses into two main groups, including “origins” and “effects” of residual stresses. The range of topics covered are “welding, machining, curing/cooling, and spray coating processes,” “medical and dental sciences,” and “fatigue and fracture mechanisms.” The third section summarizes various strategies to effectively control residual stresses through different manufacturing procedures. It is hoped that the data provided herein serves as a valuable up‐to‐date reference for engineers and scientists in the field of residual stress.

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“…[2] The study of the behavior of such composites under various environmental conditions provides efficient insights into the identification of the factors contributing to the mechanical behavior of composites. [3][4][5] Due to the heterogeneity of the structure of composite material, they exhibit complex processes of thermal fatigue damage, including a variety of damage modes such as matrix cracking, fiber-matrix debonding, fiber breakage, or delamination. [6] Throughout a thermal cycle, the matrix and fibers exhibit variable levels of expansion or contraction depending on their thermal expansion coefficients.…”

Section: Introductionmentioning

confidence: 99%

“…Being internally constrained, temperature fluctuations lead to stress buildup at the interface of laminate. Ghasemi et al [ 4 ] investigated the effect of thermal cycling on the tensile response of polymeric composite rings. Their experimental results show that tensile strength of specimen decreases by increasing the number of thermal cycles.…”

Section: Introductionmentioning

confidence: 99%

Critical strain energy release rate of woven carbon/epoxy composites subjected to thermal cyclic loading

2022

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In the current study, experimental and numerical approaches were adopted to investigate the effect of thermal cyclic load on the delaminated beam behavior of woven carbon/epoxy laminated composites. For this purpose, composite specimens were prepared according to ASTM standard and subjected to 175 thermal cycles in the range of −30 to 60°C before conducting the mode I and mode II interlaminar fracture tests. Experimental results revealed that thermal cycles lead to a drop in maximum loading capacity of the delaminated beam as well as the interlaminar fracture toughness of the woven carbon/epoxy composites. The beam fracture toughness at initiation and propagation decreased by 8% and 12% under mode I loading and by 13.84% and 15.64% under mode II loading, respectively. In the numerical analysis, the cohesive zone model was utilized in order to predict the global response of the delaminated beams. The micro and scanning electron microscope images of fracture surfaces provide efficient insights into the identification of the main mechanisms contributing to decreasing fracture toughness under cyclic thermal load. These images show that specimens subjected to cyclic thermal load exhibited smoother surfaces, which could be due to weaker bonding between matrix and fibers after cyclic thermal loading.

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A new insight into impact of thermal cycling on the un-notched and circular hole polymeric composite rings via naval ordnance laboratory-ring test

Cited by 6 publications

References 27 publications

Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens

Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens

Residual Stress in Engineering Materials: A Review

Critical strain energy release rate of woven carbon/epoxy composites subjected to thermal cyclic loading

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