Original PDF Request List

Purpose: track foundational papers that require original PDF acquisition and verification. These are needed to move paper cards from seed status to verified evidence status.

Priority A: essential for Chapter 2 theory backbone

1. Li, V.C., Leung, C.K.Y. (1992). Steady-state and multiple cracking of short random fiber composites. Journal of Engineering Mechanics, 118(11), 2246–2264. - Needed for: steady-state cracking, multiple cracking, foundational micromechanics. - Atlas nodes: strain_hardening_criteria, micromechanics_based_design, distributed_microcracking. - Status: PDF needed.

2. Kanda, T., Li, V.C. (2006). Practical design criteria for saturated pseudo strain hardening behavior in ECC. Journal of Advanced Concrete Technology, 4(1), 59–72. - Needed for: PSH strength index, PSH energy index, robust criteria such as σ_o/σ_fc and J_b0/J_tip. - Atlas nodes: strain_hardening_criteria, fiber_bridging_law. - Status: PDF needed.

3. Yang, E.-H., Wang, S., Yang, Y., Li, V.C. (2008). Fiber-bridging constitutive law of engineered cementitious composites. Journal of Advanced Concrete Technology, 6(1), 181–193. - Needed for: σ(δ) bridging law, direct constitutive relation. - Atlas nodes: fiber_bridging_law, constitutive_modeling. - Status: PDF needed.

4. Lin, Z., Li, V.C. (1997). Crack bridging in fiber reinforced cementitious composites with slip-hardening interfaces. Journal of the Mechanics and Physics of Solids, 45(5), 763–787. - Needed for: slip-hardening interfaces and bridging mechanics. - Atlas nodes: fiber_bridging_law, single_fiber_pullout future node. - Status: PDF needed.

Priority B: flaw distribution and matrix tailoring

5. Wang, S., Li, V.C. (2004). Tailoring of pre-existing flaws in ECC matrix for saturated strain hardening. FraMCoS 2004, Vail, Colorado, pp. 1005–1012. - Needed for: artificial flaw tailoring. - Atlas nodes: flaw_design, distributed_microcracking, strain_hardening_criteria. - Status: PDF needed; likely difficult to obtain automatically.

6. Tosun-Felekoglu, K., Felekoglu, B., Ranade, R., Lee, B.Y., Li, V.C. (2014). The role of flaw size and fiber distribution on tensile ductility of PVA-ECC. Composites Part B, 56, 536–545. - Needed for: flaw size and fiber distribution relation to ductility. - Atlas nodes: flaw_design, fiber_dispersion, direct_tensile_test. - Status: PDF needed.

7. Lu, C., Leung, C.K.Y., Li, V.C. (2018). Flaw distribution and cracking strength in Engineered Cementitious Composites (ECC). Cement and Concrete Research, 107, 64–74. - Needed for: flaw distribution and cracking strength. - Atlas nodes: flaw_design, strain_hardening_criteria. - Status: PDF needed.

8. Li, V.C., Wang, S. (2006). Microstructure variability and macroscopic composite properties of high performance fiber reinforced cementitious composites. Probabilistic Engineering Mechanics, 21(3), 201–206. - Needed for: microstructure variability and macro-property robustness. - Atlas nodes: flaw_design, fiber_dispersion, strain_hardening_criteria. - Status: PDF needed.

Priority C: interface and PVA-ECC tailoring

9. Redon, C., Li, V.C., Wu, C., Hoshiro, H., Saito, T., Ogawa, A. (2001). Measuring and modifying interface properties of PVA fibers in ECC matrix. Journal of Materials in Civil Engineering, 13, 399–406. - Needed for: PVA interface measurement and modification. - Atlas nodes: fiber_bridging_law, micromechanics_based_design. - Status: PDF needed.

10. Li, V.C., Wang, S., Wu, C. (2001). Tensile strain-hardening behavior of PVA-ECC. ACI Materials Journal, 98(6), 483–492. - Needed for: PVA-ECC strain-hardening behavior. - Atlas nodes: strain_hardening_criteria, direct_tensile_test. - Status: PDF needed.

11. Li, V.C., Wu, C., Wang, S., Ogawa, A., Saito, T. (2002). Interface tailoring for strain-hardening PVA-ECC. ACI Materials Journal, 99(5), 463–472. - Needed for: interface tailoring. - Atlas nodes: fiber_bridging_law, strain_hardening_criteria. - Status: PDF needed.

Priority D: processing and dispersion

12. Li, M., Li, V.C. (2012). Rheology, fiber dispersion, and robust properties of Engineered Cementitious Composites. Materials and Structures, 46(3), 405–420. - Needed for: processing-rheology-fiber dispersion link. - Atlas nodes: processing_rheology, fiber_dispersion. - Status: PDF needed.

13. Zhou, J., Qian, S., Ye, G., Copuroglu, O., Van Breugel, K., Li, V.C. (2012). Improved fiber distribution and mechanical properties of ECC by adjusting the mixing sequence. Cement and Concrete Composites, 34(3), 342–348. - Needed for: mixing sequence and fiber distribution. - Atlas nodes: fiber_dispersion, processing_rheology. - Status: PDF needed.

Priority E: self-healing / multifunctional

14. Yildirim et al. review on self-healing capability of ECC, cited in Chapter 10. - Needed for: self-healing robustness and mechanisms. - Atlas nodes: self_healing_ecc, self_healing_mechanisms, self_healing_robustness. - Status: exact citation to extract from Chapter 10 references.

15. Self-sensing ECC papers cited in Chapter 10, including piezoresistivity and EIT papers. - Needed for: self-sensing, piezoresistivity, EIT. - Atlas nodes: self_sensing_ecc, piezoresistivity, electrical_impedance_tomography. - Status: exact citations to extract from Chapter 10 references.

How to use this list

• First try automatic discovery/download where legally accessible.
• If blocked by paywall or unavailable, ask user to provide PDF.
• After PDF acquisition, create originals/ and extracted_text/ under 03_papers/ or a dedicated 00_sources/papers/ folder.
• Then update each paper card with exact claims, methods, equations, figures, and citation metadata.

Acquisition status update — uploaded core set

Received and preserved under 00_sources/foundational_papers/:

• Li & Leung 1992 — PDF + full text + source note received.
• Kanda & Li 2006 — PDF + full text + source note received.
• Lin & Li 1997 — PDF + full text + source note received.
• Li, Wang & Wu 2001 — PDF + full text + source note received.
• Li et al. 2002 — PDF + full text + source note received.
• Redon et al. 2001 — PDF + full text + source note received.
• Wang & Li 2004 — PDF + full text + source note received.
• Tosun-Felekoglu et al. 2013/2014 — PDF + full text + source note received.
• Lu, Li & Leung 2018 — PDF + full text + source note received.
• Yang et al. 2008 — PDF + full text + source note received.

Remaining from the earlier priority list:

• Li & Wang 2006, microstructure variability and macroscopic composite properties — still needed unless supplied separately.
• Li & Li 2012/2013, rheology, fiber dispersion, and robust properties of ECC — still needed.
• Zhou et al. 2012, improved fiber distribution by mixing sequence — still needed.
• Chapter 10 self-healing/self-sensing cited papers — still need exact citation extraction.

Acquisition status update — additional processing papers

Received and preserved under 00_sources/foundational_papers/:

• Li & Wang 2006 — PDF received and text extracted.
• Li & Li 2012/2013 — PDF received and text extracted.
• Zhou et al. 2012 — PDF received and text extracted.

Remaining from earlier priority list:

• Chapter 10 self-healing/self-sensing cited papers — still need exact citation extraction.