Coleção desafios das engenharias: Engenharia de materiais e metalúrgica
Bibliographic record
Abstract
Environmental Stress Cracking (ESC), or simply stress cracking, is a phenomenon that occurs in polymeric materials when there is the joint action of a fluid (liquid or steam) with mechanical stresses, causing cracking or leading to premature and catastrophic failure of the material. The aim of this study is to investigate publications from the last 21 years (2000 to 2020) on stress cracking. The research was carried out in three databases, the Web of Science, Scielo and Scopus in order to obtain the number of articles published, verify which countries research the most on the subject, the related keywords and the main references adopted. With this, we highlight the routes built within this field in a timeline, as well as the main countries that assume leadership positions in these surveys. From the distribution of key words, it was found that there was a variation on the studies of the ESC phenomenon, such as: diversification in the polymers used and concern with not only mechanical, but also morphological and structural aspects. The surveys carried out in this study show that the annual amount of publications on the ESC phenomenon worldwide shows a discrete linear growth in the period from 2000 to 2020, and that Brazil is one of the main countries that research the phenomenon together with the USA, China , Germany and Canada.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.003 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.003 | 0.004 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.138 | 0.009 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".