Search Results - "Loya, J.A."

Experimental analysis for stabbing resistance of different aramid composite architectures by Rodríguez-Millán, M., Díaz-Álvarez, A., Aranda-Ruiz, J., Díaz-Álvarez, J., Loya, J.A.

“…Stab resistance is a crucial material property in the case of fabrics used in personal protection equipment due to the extensive occurrence of this threat…”
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Bending of Euler–Bernoulli beams using Eringen’s integral formulation: A paradox resolved by Fernández-Sáez, J., Zaera, R., Loya, J.A., Reddy, J.N.

“…The Eringen nonlocal theory of elasticity formulated in differential form has been widely used to address problems in which size effect cannot be disregarded…”
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Ballistic performance of aramid composite combat helmet for protection against small projectiles by Rubio, I., Rodríguez-Millán, M., Marco, M., Olmedo, A., Loya, J.A.

“…This paper focuses on the ballistic performance of aramid composite combat helmet commonly worn by military and security corps, against small projectiles…”
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High cycle fatigue life analysis of unidirectional flax/PLA composites through infrared thermography by Charca, Samuel, Jiao-Wang, Liu, Loya, J.A., Martínez, Miguel A., Santiuste, Carlos

“…The durability of structural components under fatigue loading is a huge concern, especially in laminated composites. During the last few years, flax fibers…”
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Operational proposal of “U” type earth heat exchanger harnessing a non-producing well for energy supply to an absorption cooling system. Approach with “La Primavera” geothermal field data by Molina-Rodea, R., Saucedo-Velázquez, J., Gómez-Franco, W.R., Wong-Loya, J.A.

“…This paper proposes the operation of “U" type heat exchangers to harness the remaining heat/geothermal energy in a non-producing well and use it in an…”
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On the characterization and modelling of high-performance para-aramid fabrics by Moure, M.M., Feito, N., Aranda-Ruiz, J., Loya, J.A., Rodriguez-Millan, M.

“…In this work, seven different types of fabrics based on para-aramid yarns with different interlacing geometries and reinforcement polymer matrix have been…”
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Natural frequencies of vibration in cracked Timoshenko beams within an elastic medium by Loya, J.A., Aranda-Ruiz, J., Zaera, R.

“…This work analyzes the dynamic behavior of cracked Timoshenko beams immersed in a Winkler elastic medium, obtaining their natural frequencies of bending…”
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On the double transition in the failure mode of polycarbonate by Aranda-Ruiz, J., Ravi-Chandar, K., Loya, J.A.

“…•Two transition points have been found in the failure mode of PC.•Failure mode transition is explored both experimentally and numerically.•A global damage…”
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Analysis of impact energy absorption by lightweight aramid structures by Moure, M.M., Rubio, I., Aranda-Ruiz, J., Loya, J.A., Rodríguez-Millán, M.

“…This paper presents and analyses the behaviour of aramid composite plates subjected to low and medium impact energies. In order to study the material behaviour…”
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Experimental and numerical analyses of ballistic resistance evaluation of combat helmet using Hybrid III headform by Rodriguez-Millan, M., Rubio, I., Burpo, F.J., Tse, K.M., Olmedo, A., Loya, J.A., Parker, K.K., Miguélez, M.H.

“…•The Hybrid III dummy head and neck was introduced to evaluate the performance of the combat helmet.•The influence of the foam thickness was critical to…”
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On the bulk modulus and natural frequency of fullerene and nanotube carbon structures obtained with a beam based method by Braun, M., Aranda-Ruiz, J., Rodríguez-Millán, M., Loya, J.A.

“…In this work, the natural frequency of vibration and Bulk modulus under hydrostatic pressure conditions of carbon nanotubes and fullerenes are investigated…”
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Resonator-based detection in nanorods by Morassi, A., Fernández-Sáez, J., Zaera, R., Loya, J.A.

“…•The vibrations of nanoresonators with a single point mass have been addressed.•The modified strain gradient theory has been used to account for size…”
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Development of numerical model for ballistic resistance evaluation of combat helmet and experimental validation by Rodríguez-Millán, M., Ito, T., Loya, J.A., Olmedo, A., Miguélez, M.H.

“…Modern designing process of combat helmets requires both numerical modeling and experimental validation in order to achieve exigent requirements combining…”
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Impact response of advance combat helmet pad systems by Rodriguez-Millan, M., Rubio, I., Burpo, F.J., Olmedo, A., Loya, J.A., Parker, K.K., Miguélez, M.H

“…•Four pad systems were studied to analyze the ballistic performance of helmets.•Thicker pads for the same foam evidently reduce accelerations and injury…”
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A new model to predict subsoil-thermal profiles based on seasonal rain conditions and soil properties by Molina-Rodea, R., Wong-Loya, J.A.

“…•Environmental factors such as rain have a direct impact on the sub soil temperature profiles.•The subsoil heat transfer is modified due to the environmental…”
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A new simulator to determine thermal disturbance and recovery processes during wellbore drilling: Experimental validation with a scaled-down wellbore prototype by Molina-Rodea, R., Wong-Loya, J.A., Valades-Pelayo, P.J.

“…In the present study, a novel simulator is developed. The simulator is built upon the model presented by (Wong et. al. 2017) but considering a Robin boundary…”
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Optimization of passive vibration absorbers to reduce chatter in boring by Rubio, L., Loya, J.A., Miguélez, M.H., Fernández-Sáez, J.

“…This paper is focused on the optimal selection of the parameters of a passive dynamic vibration absorber (DVA) attached to a boring bar. The boring bar was…”
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Axisymmetric free vibration of closed thin spherical nano-shell by Zaera, R., Fernández-Sáez, J., Loya, J.A.

“…This work investigates the free axisymmetric vibrations of a closed spherical nano-shell using the Eringen nonlocal elasticity theory. The motion equations are…”
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A 3-D wellbore simulator (WELLTHER-SIM) to determine the thermal diffusivity of rock-formations by Wong-Loya, J.A., Santoyo, E., Andaverde, J.

“…Acquiring thermophysical properties of rock-formations in geothermal systems is an essential task required for the well drilling and completion. Wellbore…”
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Improvement of chatter stability in boring operations with passive vibration absorbers by Miguélez, M.H., Rubio, L., Loya, J.A., Fernández-Sáez, J.

“…This paper is focused on the behavior of boring bars with a passive dynamic vibration absorber (DVA) for chatter suppression. The boring bar was modeled as a…”
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