2019
DOI: 10.3390/ma12203385
View full text |Buy / Rent full text
|
Sign up to set email alerts
|

Abstract: The mechanical failure properties of rigid polyurethane foam treated under random vibration were studied experimentally and by numerical simulation. The random vibration treatments were carried out in the frequency range of 5–500 Hz, 500–1000 Hz, and 1000–1500 Hz, respectively. The influence of the vibration frequency, mass block and acceleration on the mechanical performance of rigid polyurethane foam was further investigated by compression testing. The experimental results showed that the compression perform… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

1
10
0

Year Published

2020
2020
2021
2021

Publication Types

Select...
4

Relationship

0
4

Authors

Journals

citations
Cited by 12 publications
(11 citation statements)
references
References 26 publications
(37 reference statements)
1
10
0
Order By: Relevance
“…W E slowly decreased until the σ c at ε OD , and then continued to decrease progressively at σ c beyond ε OD . A similar relationship between W E and these characteristic σ values has been reported in literature [ 74 , 75 , 77 , 78 ].…”
Section: Resultssupporting
confidence: 88%
See 1 more Smart Citation
“…W E slowly decreased until the σ c at ε OD , and then continued to decrease progressively at σ c beyond ε OD . A similar relationship between W E and these characteristic σ values has been reported in literature [ 74 , 75 , 77 , 78 ].…”
Section: Resultssupporting
confidence: 88%
“…From a product design application perspective, the ε OD is a more useful parameter to consider, as it can be used to calculate the energy the polymeric foam is able to absorb before it acts as a homogenous solid [ 44 ]. The ε OD was calculated by implementing the methodology of Tan et al [ 36 ], which was further developed for polymeric cellular solids by Li et al [ 35 ] as a reliable method within literature [ 40 , 71 , 72 , 73 , 74 , 75 ]. The energy absorption characteristics have been summarized in Table 4 .…”
Section: Resultsmentioning
confidence: 99%
“…The foam samples (diameter D = 10 mm, L/D of 1) are compressed up to 50% strain at a strain rate of 0.1 s À1 and the evolution of stress at constant strain is recorded for 1 h. The 50% strain level ensures that the samples are compressed below the densification strain. 83 While Figure 11a compares the stress-strain response during compression, the variation of stress with time at a constant strain of 50% is compared in Figure 11b. The initial part of stress-strain plots is used to calculate the elastic modulus of PU foam samples.…”
Section: Effect Of Processing Temperature and Cnt Wt% On The Frequency Dependent Behavior Of Pu Foamsmentioning
confidence: 99%
“…Concerning their wide range of applications and knowledge of their weaknesses, the mechanical properties of PUR foam have been a subject of continuous research because its poor mechanical properties limit its practice use. A literature review reveals that PUR foam has been tested by thermogravimetric analysis (TGA) [ 16 , 17 , 21 , 22 ] and that its mechanical properties in tension [ 23 , 24 , 25 ], compression [ 9 , 26 , 27 , 28 , 29 ] and fatigue [ 30 ] have been determined. However, the mechanical properties of PUR foam have not yet been analysed with respect to their dependence on temperature, strain rate and density.…”
Section: Introductionmentioning
confidence: 99%