http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0340298-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a6af34edd0ba36c7ad78dccbfc73903a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0251 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0231 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-227 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C70-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-00 |
| filingDate | 1988-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15d92b912ff5dbccf820f5ed1bcdd15c |
| publicationDate | 1989-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0340298-A1 |
| titleOfInvention | Method of establishing standard composite material properties |
| abstract | A standard reference deformation of a composite material (40) containing a flowable phase (120) and compressible ninclusions (122), such as prepreg (116), is measured as the deformation whereat the dominant compressive mode of componsite deformation changes from that characteristic of compressible inclusion collapse to that characteristic of resin flow, ntermed the optimal consolidation deformation. Establishment of this point permits measurement and correlation of physincally significant composite properties. For example, material properties of such composite materials are measured under a ncompressive loading by an ultrasonic transducer (36) at the optimal consolidation deformation. At this point, normally dentermined to be the deformation at which the second derivative (134) of compressive displacement falls to about zero, comnpressible inclusions such as voids (122) are eliminated but the flowable phase has not yet begun to flow significantly so as nto change the fractions of the phases. This technique is particularly valuable in ultrasonically measuring properties such as nphase fractions of resin matrix prepreg materials wherein the resin has not been cured and readily flows, and wherein there nare typically voids that interfere with the measurement of properties. |
| priorityDate | 1987-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID8343 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID226409812 |
Total number of triples: 21.