Analysis of Fractional Viscoelastic Material With Mechanical Parameters Dependent on Random Temperature
It is well known that mechanical parameters of polymeric materials, e.g., epoxy resin, are strongly influenced by the temperature. On the other hand, in many applications, the temperature is not known exactly during the design process and this introduces uncertainties in the prevision of the behavio...
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| Veröffentlicht in: | ASCE-ASME journal of risk and uncertainty in engineering systems, Part B. Mechanical engineering Part B. Mechanical engineering, 2017-09, Vol.3 (3) |
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| container_title | ASCE-ASME journal of risk and uncertainty in engineering systems, Part B. Mechanical engineering |
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| creator | Alotta, G. Colinas-Armijo, N. |
| description | It is well known that mechanical parameters of polymeric materials, e.g., epoxy
resin, are strongly influenced by the temperature. On the other hand, in many
applications, the temperature is not known exactly during the design process and
this introduces uncertainties in the prevision of the behavior also when the
stresses are deterministic. For this reason, in this paper, the mechanical
behavior of an epoxy resin is characterized by means of a fractional
viscoelastic model at different temperatures; then, a simple method to
characterize the response of the fractional viscoelastic material at different
temperatures modeled as a random variable with assigned probability density
function (PDF) subjected to deterministic stresses is presented. It is found
that the first- and second-order statistical moments of the response can be
easily evaluated only by the knowledge of the PDF of the temperature and the
behavior of the parameters with the temperature. Comparison with Monte Carlo
simulations is also performed in order to assess the accuracy and the
reliability of the method. |
| doi_str_mv | 10.1115/1.4036704 |
| format | Article |
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resin, are strongly influenced by the temperature. On the other hand, in many
applications, the temperature is not known exactly during the design process and
this introduces uncertainties in the prevision of the behavior also when the
stresses are deterministic. For this reason, in this paper, the mechanical
behavior of an epoxy resin is characterized by means of a fractional
viscoelastic model at different temperatures; then, a simple method to
characterize the response of the fractional viscoelastic material at different
temperatures modeled as a random variable with assigned probability density
function (PDF) subjected to deterministic stresses is presented. It is found
that the first- and second-order statistical moments of the response can be
easily evaluated only by the knowledge of the PDF of the temperature and the
behavior of the parameters with the temperature. Comparison with Monte Carlo
simulations is also performed in order to assess the accuracy and the
reliability of the method.</description><identifier>ISSN: 2332-9017</identifier><identifier>EISSN: 2332-9025</identifier><identifier>DOI: 10.1115/1.4036704</identifier><language>eng</language><publisher>ASME</publisher><ispartof>ASCE-ASME journal of risk and uncertainty in engineering systems, Part B. Mechanical engineering, 2017-09, Vol.3 (3)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a249t-6ead071a80df4ef8335d5cd77afcd1e64dc65eb422742da47fd28a71942bf74d3</citedby><cites>FETCH-LOGICAL-a249t-6ead071a80df4ef8335d5cd77afcd1e64dc65eb422742da47fd28a71942bf74d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904,38499</link.rule.ids></links><search><creatorcontrib>Alotta, G.</creatorcontrib><creatorcontrib>Colinas-Armijo, N.</creatorcontrib><title>Analysis of Fractional Viscoelastic Material With Mechanical Parameters Dependent on Random Temperature</title><title>ASCE-ASME journal of risk and uncertainty in engineering systems, Part B. Mechanical engineering</title><addtitle>ASME J. Risk Uncertainty Part B</addtitle><description>It is well known that mechanical parameters of polymeric materials, e.g., epoxy
resin, are strongly influenced by the temperature. On the other hand, in many
applications, the temperature is not known exactly during the design process and
this introduces uncertainties in the prevision of the behavior also when the
stresses are deterministic. For this reason, in this paper, the mechanical
behavior of an epoxy resin is characterized by means of a fractional
viscoelastic model at different temperatures; then, a simple method to
characterize the response of the fractional viscoelastic material at different
temperatures modeled as a random variable with assigned probability density
function (PDF) subjected to deterministic stresses is presented. It is found
that the first- and second-order statistical moments of the response can be
easily evaluated only by the knowledge of the PDF of the temperature and the
behavior of the parameters with the temperature. Comparison with Monte Carlo
simulations is also performed in order to assess the accuracy and the
reliability of the method.</description><issn>2332-9017</issn><issn>2332-9025</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNo9kM1PAjEQxRujiQQ5ePbSq4fFfu12ORIUNYFoDOqxGdqplLC7pC0H_nvXQDzNzO-9TPIeIbecjTnn5QMfKyYrzdQFGQgpRTFhorz837m-JqOUtowxrkpRV2pAfqYt7I4pJNp5Oo9gc-h6Qr9Csh3uIOVg6RIyxtDT75A3dIl2A22w_f0OERrsxUQfcY-twzbTrqUf0LquoSts9hghHyLekCsPu4Sj8xySz_nTavZSLN6eX2fTRQFCTXJRITimOdTMeYW-lrJ0pXVag7eOY6WcrUpcKyG0Eg6U9k7UoPlEibXXyskhuT_9tbFLKaI3-xgaiEfDmfkryXBzLqn33p28kBo02-4Q--TJKC24quUv9fpj3Q</recordid><startdate>20170901</startdate><enddate>20170901</enddate><creator>Alotta, G.</creator><creator>Colinas-Armijo, N.</creator><general>ASME</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20170901</creationdate><title>Analysis of Fractional Viscoelastic Material With Mechanical Parameters Dependent on Random Temperature</title><author>Alotta, G. ; Colinas-Armijo, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a249t-6ead071a80df4ef8335d5cd77afcd1e64dc65eb422742da47fd28a71942bf74d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alotta, G.</creatorcontrib><creatorcontrib>Colinas-Armijo, N.</creatorcontrib><collection>CrossRef</collection><jtitle>ASCE-ASME journal of risk and uncertainty in engineering systems, Part B. Mechanical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alotta, G.</au><au>Colinas-Armijo, N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Analysis of Fractional Viscoelastic Material With Mechanical Parameters Dependent on Random Temperature</atitle><jtitle>ASCE-ASME journal of risk and uncertainty in engineering systems, Part B. Mechanical engineering</jtitle><stitle>ASME J. Risk Uncertainty Part B</stitle><date>2017-09-01</date><risdate>2017</risdate><volume>3</volume><issue>3</issue><issn>2332-9017</issn><eissn>2332-9025</eissn><abstract>It is well known that mechanical parameters of polymeric materials, e.g., epoxy
resin, are strongly influenced by the temperature. On the other hand, in many
applications, the temperature is not known exactly during the design process and
this introduces uncertainties in the prevision of the behavior also when the
stresses are deterministic. For this reason, in this paper, the mechanical
behavior of an epoxy resin is characterized by means of a fractional
viscoelastic model at different temperatures; then, a simple method to
characterize the response of the fractional viscoelastic material at different
temperatures modeled as a random variable with assigned probability density
function (PDF) subjected to deterministic stresses is presented. It is found
that the first- and second-order statistical moments of the response can be
easily evaluated only by the knowledge of the PDF of the temperature and the
behavior of the parameters with the temperature. Comparison with Monte Carlo
simulations is also performed in order to assess the accuracy and the
reliability of the method.</abstract><pub>ASME</pub><doi>10.1115/1.4036704</doi></addata></record> |
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| identifier | ISSN: 2332-9017 |
| ispartof | ASCE-ASME journal of risk and uncertainty in engineering systems, Part B. Mechanical engineering, 2017-09, Vol.3 (3) |
| issn | 2332-9017 2332-9025 |
| language | eng |
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| source | ASME Transactions Journals (Current) |
| title | Analysis of Fractional Viscoelastic Material With Mechanical Parameters Dependent on Random Temperature |
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